Ximan Hongtu

Seman Bio, also known as Ximan Hongtu, is a specialized biotechnology company headquartered in Beijing, China, focusing on the field of targeted protein degradation (TPD). The company provides a comprehensive suite of tools and services centered around Proteolysis-Targeting Chimera (PROTAC) technology, including an extensive library of E3 ligase ligands and chemical linkers. Seman Bio supports global pharmaceutical and biotech partners by offering custom synthesis, molecular design, and biological screening for protein degraders. Their platform is designed to accelerate the discovery of novel therapeutics for "undruggable" targets in oncology and other therapeutic areas. By combining chemical expertise with biological validation, the company has established itself as a leading provider in the TPD space within the Chinese market.